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path: root/src/mp3_vnops.c
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
#define FUSE_USE_VERSION 26

#include <fuse.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>

static int mp3_getattr (const char *path, struct stat *stbuf)
{
	memset (stbuf, 0, sizeof (struct stat));
	if (strcmp (path, "/") == 0) {
		stbuf->st_mode = S_IFDIR | 0755;
		stbuf->st_nlink = 2;
		return 0;
	}
	if (strcmp (path, "/MP3Z") == 0) {
		stbuf->st_mode	= S_IFREG | 0444;
		stbuf->st_nlink = 1;
		stbuf->st_size	= 12;
		return 0;
	}

	return -ENOENT;
}

static int mp3_readdir (const char *path, void *buf, fuse_fill_dir_t filler,
						off_t offset, struct fuse_file_info *fi)
{
	if (strcmp (path, "/") != 0)
		return -ENOENT;

	filler (buf, ".", NULL, 0);
	filler (buf, "..", NULL, 0);
	filler (buf, "MP3Z", NULL, 0);

	/*
	 * 1. Parse the path.
	 * 2. Find the mp3s that matches the tags given from the path.
	 * 3. Return the list of those mp3s.
	 */
	return 0;
}

static int mp3_open (const char *path, struct fuse_file_info *fi)
{
	if (strcmp (path, "/MP3Z") == 0)
		return 0;
	/*
	 * 1. Have a lookup cache for names?.
	 *    Parse Genre, Album, Artist etc.
	 * 2. Find MP3s that match. XXX what do we do with duplicates? just
	 *    return the first match?
	 * 3. Put the mnode of the mp3 in our cache.
	 * 4. Signal in mnode that the mp3 is being read?
	 */
	return -ENOENT;
}

static int mp3_read (const char *path, char *buf, size_t size, off_t offset,
					 struct fuse_file_info *fi)
{
	if (strcmp (path, "/MP3Z") == 0) {
		memcpy (buf, "Oh you wish\n", 12);
		return 12;
	}

	/*
	 * 1. Find the mnode given the path. If not in cache, read through mp3
	 *    list to find it. 
	 * 2. Read the offset of the mp3 and return the data.
	 */
	return -ENOENT;
}

static struct fuse_operations mp3_oper = {
	.getattr	= mp3_getattr,
	.readdir	= mp3_readdir,
	.open		= mp3_open,
	.read		= mp3_read,
};